Subject: LFS hangs during heavy disk activity
To: None <>
From: David P. Reese, Jr. <>
List: current-users
Date: 11/25/2003 19:20:02
I'm trying to build distributions on an LFS volume on 1.6ZF and one of my
nbinstall proc's is getting hung in state "uvn_fp".  When it gets hung
I see the following on the console:

lfs_writevnodes: starting over
ino 248385 bytes == 0 offset 0

I was able to get a backtrace of the process in DDB

trace: pid 28454 at 0xe138c6f8
ltsleep(c0803680,204,c0314c15,0,e09bb8a0) at netbsd:ltsleep+0x3fb
uvn_findpage(e09bb8a0,0,0,e138c940,0) at netbsd:uvn_findpage+0x82
uvn_findpages(e09bb8a0,0,0,e138c8dc,e138c940) at netbsd:uvn_findpages+0xaf
genfs_getpages(e138ca00,6,0,c0366cc0,0) at netbsd:genfs_getpages+0x41c
ubc_fault(e138cb30,e036e000,e138cab0,1,0) at netbsd:ubc_fault+0x1a0
uvm_fault(c0366d00,e036e000,0,2,0) at netbsd:uvm_fault+0x2f8
trap() at netbsd:trap+0x38f
--- trap (number 2202) ---

Is it possible to unhang the process?  It's not responding to SIGKILL.

   David P. Reese, Jr.